[release-4.6] Set TCP_USER_TIMEOUT socket option

[openshift-cherrypick-robot]

This is an automated cherry-pick of #926

/assign p0lyn0mial

[p0lyn0mial]

/assign @sttts

[sttts]

/lgtm
/approve

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: openshift-cherrypick-robot, sttts

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[p0lyn0mial]

/cherry-pick release-4.5

[openshift-cherrypick-robot]

@p0lyn0mial: #937 failed to apply on top of branch "release-4.5":

Applying: provides DefaultClientDialer that returns a network dialer with default options sets.
Applying: go mod vendor
Using index info to reconstruct a base tree...
M	go.mod
Falling back to patching base and 3-way merge...
Auto-merging go.mod
CONFLICT (content): Merge conflict in go.mod
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0002 go mod vendor
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

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In response to this:

/cherry-pick release-4.5

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